Nickel-free Sterling silver, oval filligee Cubic Zirconia locket. Also includes a rhodium plate finish, which gives it its lustrous white gold appearance. All of our cubic zirconia items are also made with Grade A quality stones with a high-shine finish. All of our Cubic Zirconia pieces are always set and never glued on. Depending on the styles, The Boca Jewelry Store uses both machine-cut and hand-cut Cubic Zirconia stones. The Boca Jewelry Store guarantees that our Sterling silver merchandise is 925 Sterling or above.